package com.howie.common.valid;

import javax.validation.ConstraintValidator;
import javax.validation.ConstraintValidatorContext;
import java.lang.annotation.Annotation;
import java.util.HashSet;
import java.util.Set;

/**
 * @description: 自定义的校验器
 * @author: laizhenghua
 * @date: 2020/12/17 15:23
 */
public class ListValueConstraintValidator implements ConstraintValidator<ListValue,Integer> {
    private Set<Integer> set = new HashSet<>();
    // 初始化方法
    @Override
    public void initialize(ListValue constraintAnnotation) {
        int[] values = constraintAnnotation.value();
        if(values.length != 0){
            for (int value : values) {
                set.add(value);
            }
        }
    }

    /*
     * @description: 判断是否校验成功
     * @author: laizhenghua
     * @date: 2020/12/17 15:37
     * @param: value 就是需要校验的值
     * @param: context
     * @return: boolean
     */
    @Override
    public boolean isValid(Integer value, ConstraintValidatorContext context) {
        return set.contains(value);
    }
}
